Improvement in boxes for shafting



I. B. TOMLIN SON. BOXES FOR SHAFTING.

Patented June 12, 1877.

MPEIERS, PHDTO-LITHOGRAPHER, WASHINGTON. n O.

UNITED STATES PATENT QFFICE,

JOSEPH B. ToMLINsoN, 0F, BLACK HAWK, COLORADO, ASSIGNOR T0 HIMSELF AND GIBBONS n. KELTY, or BROOKLYN, NEW YORK.

IMPROVEMENT m BQXES FOR SHAFTING.

Specification forming part of Letters Patent No. !9l,90l, dated June 12, 1877; application filed May 7, 1877.

Shafting, of which the following is a specification:

I make use of a pad of fibrous material in the upper half of the box to receive and retain any surplus oil that would otherwise escape toward the ends of the hearing. I also provide an oil-well and lubricating-pad in the lower half of the box, and fit at the ends of the bearing segmental cut-offs, pressed to the shaft by springs, that serve to exclude dust, and to retain within the box oil that might otherwise escape, thus rendering the hearing as free from friction as possible, and lessening the amount of attention required in keeping the box in order.

In the drawing, Figure l is a cross-section of the box. Fig. 2 is a longitudinal section of the same. Fig. 3 is a plan of the lower half-box, and Fig. 4 is a cross-section at the line a: a. r

The shell a is made hollow, with an oilchamber, 1), below the bearings 0, that are preferably faced with Babbitt-metal, and of a size to lit the journal. The upper half d is received between the flanges e e, and bolted to the shell or by the screws f. The bearingsurfaces 9 are preferably faced with Babbittmetal, and between these there is a channel for receiving a piece of felt or similar material at h that forms an upper pad that aids in the lubrication of the axle, and should there be any superfluous oil upon the journal it absorbs the same, and returns it gradually to the journal In the oil-chamber b there is a capillary pad, k, that passes up between the bearing-surfaces a, and is kept to the journal *bby removing either of the screws.

be retained in the well, and supplied gradually and uniformly to the journal. The bolts f pass through the top part of the shell a, so that oil can be introduced into the chamber At the ends of the bearing-surfaces there are cut-ofl's m n, that are preferably of wood, and introduced into chambers provided for them in the upper and lower portions of the shells a and cl, and there are springs 0 that serve to press the cut-offs toward each other. These cut-offs serve toexclude dust, and also to prevent oil passing 0E outside the bearings. The lower cut offs,cntering chambers at the ends of the oilchamber, insure the return to said oil-chamber of any oil that passes ed the ends of the journal.

I claim as my invention- 1. The combination, in the journal-box, of the upper" bearings g g, pad it between such bearings, the lower bearings c c and pad 70 between said bearings, the oil-chamber bin the bottom of the shell a, and the spring cutofi plates m n in the recesses at the ends of boxes, substantially as specified.

2. The combination, in the journal-box, of the oil-chamber b, spring-pad It between the bearings c c, and the springcut-off plates or n, and thin recesses at the ends of the journal-box, substantially as set forth;

Signed by'me this 30th day of April, A. D.

1877. i J. B. TOMLINSON.

Witnesses:

GEQ. T. PINGKNEY,

GHAs. H. SMITH. 

